C'mon anyone with sufficient knowledge and will could make an illegal FA weapon. This 3D printing stuff is just media hyped nonsense.

__________________E-Shock rounds are engineered to expend maximum energy into soft targets, turning the density mass into an expanding rotational cone of NyTrilium matrix particles, causing neurological collapse to the central nervous system.- Yeah I can do that.
I guarantee you will know it if a bicyclist hits your house going 1000 mph. -Smaug